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Method for Coating poly（L-lysine） on the magnetic nanoparticles by surface initiated polymerization

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Method for Coating poly（L-lysine） on the magnetic nanopart...

Developmentally Regulated Glucosylation of Bitter Triterpenoid in Cucumber by the UDP-Glucosyltransferase UGT73AM3

The 2nd China-Japan-Korea Joint Symposium on Ion Chromatography

作者： Jong Jin Lee Kuk ro Yoon Department of Chemistry Hannam University 133 Ojung-DongDaeduk-GuDaejon306-791Korea Department of Chemistry Hannam University 133 Ojung-DongDaeduk-GuDaejon306-791Korea

＜正＞Magnetic nanoparticles were used for developing target specific magnetic resonance imaging （MRI） contrasts agents and bioseparation applications. We demonstrated a simple method for surface modified nano-materials, where nano-materials were functionalize with organic molecules by Surface-Initiated Polymerization. Considering the material importance of nano- materials, the method described herein would be beneficial in many areas, such as devices and sensors. The resulting

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Molecular Plant 2017年第7期10卷 1000-1003页

作者： Yang Zhong Xiaofeng Xue Zhiqiang Liu Yongshuo Ma Kewu Zeng Lida Han Jingjing Qi Dae-Kyun ro Soren Bak Sanwen Huang Yuan Zhou Yi Shang Key Laboratory of Biology and Genetic Improvement of Horticultural Crops of the Ministry of Agriculture Sino-Dutch Joint Laboratory of Horticultural Genomics Institute of Vegetables and Flowers Chinese Academy of Agricultural Sciences Beijing 100081 China Agriculturat Genome Institute at Shenzhen Chinese Academy of Agricultural Science Shenzhen 518124 China Tongji School of Pharmacy Huazhong University of Science and Technology 13 Hangkong Road Wuhan 430030 China Institute of Apicuiture Research Chinese Academy of Agricultural Sciences Beijing 100093 China School of Life Science Shanxi University Taiyuan 030006 China School of Pharmaceutical Sciences Peking University Health Science Center Beijing 100191 China Biotechnology Research Institute Chinese Academy of Agricultural Sciences Beijing 100081 China College of Life Sciences Nanjing Agricultural University Nanjing 210095 China Department of Biological Sciences University of Calgary Calgary T2N 1N4 Canada Department of Plant and Environmental Sciences Copenhagen PlantScience Centre University of Copenhagen Copenhagen 1871 Denmark

Dear Editor,Plants have evolved great plasticity to adapt to external environments. A huge number of structurally diverse metabolites gener- ated through the glycosylation process is one potential mechanism that contr...

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Production of Bio-Phenols for Industrial Application:Scale-Up of the Base-Catalyzed Depolymerization of Lignin

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Green and Sustainable Chemistry 2017年第3期7卷 193-202页

作者： Bjorn roвiger robert rover Gerd Unkelbach Daniela Pufky-Heinrich Fraunhofer Center for Chemical-Biotechnological Processes(CBP) LeunaGermany

Objective of this study was the investigation on the up-scaling of base-catalyzed depolymerization (BCD) of lignin to pilot plant dimension. The cleavage process was carried out in dilute alkaline solution at temperatures up to 340°C and a pressure of 25 MPa in a continuously operated tubular flow reactor with throughputs up to 20 kg/h. Investigations included the proof of the feasibility of the scale-up as well as a parameter study on the cleavage of hardwood Organosolv lignin and softwood Kraft lignin within the established pilot plant. Yields and molecular compositions of the isolated product fractions BCD-oil (liquid phenolic fraction) and BCD-oligomers (solid phenolic fraction) are similar to those described in technical lab scale, showing a good scalability. Here, BCD-oils rich in phenolic monomers such as guaiacol, catechol and/or syringol were obtained with a content of up to 13.3 wt% and 14.5 wt% from Organosolv lignin and Kraft lignin, respectively. Formation of BCD-oligomers strongly depends on temperature and residence times within the reactor.

关键词： Lignin Base-Catalyzed Depolymerization Phenolic Monomers Phenolic Oligomers

Evaluation of Weed Incidence and Biomass in Coffee Intercropped with Oil Palm in Avenue and Hollow Square Arrangement in Nigeria

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American Journal of Plant Sciences 2020年第2期11卷 276-284页

作者： A. O. Famaye S. A. Adeosun K. O. Ayegboyin K. B. adejobi O. S. O. Akanbi A. F. Okunade Cocoa Research Institute of Nigeria (CRIN) Ibadan Oyo State Nigeria

Weed incidence and biomass in tree crop plantations are mainly influenced by environmental, farm management practices and cropping systems. Manipulation of intercropping systems to improve weed management in coffee intercropped with oil palm requires a better understanding of spatial and temporal dynamics of weeds. To evaluate the effect of weed incidence and biomass in coffee intercropped with oil palm in avenue and hollow square arrangement, a study was carried out in Cocoa Research Institute of Nigeria (CRIN) in two locations. The locations are Idi-Ayunre (7°25'N, 3°24'E) (an alfisol) and Uhonmora (6°5'N, 5°50'E) (ultisol) in rainforest and derived savannah parts of Nigeria respectively. The experiment had three treatments comprising coffee sole (control), coffee with oil palm (Hollow square) arrangement and coffee with oil palm (Avenue) planting. Coffee was planted 3.0 m apart while oil palm was planted 9 m apart. Equal size of land area was used for coffee in each treatment. The experimental design was Randomized Complete Block (RCBD) with three replicates. Data on vegetative growth of coffee, weed incidence and biomass were taken at three-monthly intervals. The result showed that coffee/oil palm (Hollow Square) had the least weed incidence and biomass closely followed by coffee/oil palm (Avenue) planting. The control had the highest weed biomass which was significantly different from Hollow square and Avenue planting at P ≤ 0.05. The morphological parameters on coffee followed the same pattern but Hollow square arrangement was significantly higher than Avenue and control at P ≤ 0.05.

关键词： Evaluation Weed Incidence Biomass Coffee Intercropped Oil Palm Hollow Square Avenue Arrangement

MeteoRead: Client Software for Inserting Observed Atmospheric Data into MySQL<sub>TM</sub>Database and Downloading them into Different File Format

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Journal of Software Engineering and Applications 2021年第10期14卷 563-574页

作者： Beáta Szabó-Takács Tamás Takács Aleš roček Department of Atmospheric Matter Fluxes and Long-Range Transport Global Change Research Institute Brno Czech Republic Faculty of Engineering and Information Technology University of Pécs Pécs Hungary Institute of Computer Science Masaryk University Brno Czech Republic

The investigation of the tendency of climate change and its effects on ecology, economy and sociology is essential for long term policy making. The long-term measurement of the physical and chemical properties of the atmosphere with state-of-the-arts instruments provides high-quality data for these studies. The evaluated data are stored in really special file structures and formats that cannot be inserted in one common database. Moreover, the observed data usually available in ASCII format and the users sometimes need to convert them in other format. The file conversion is usually time consuming procedure and can contribute to the uncertainties. MeteoRead is a client database software that imports the observed atmospheric data e.g. wind direction, wind speed, aerosol particle concentration etc. and makes them available in different file formats, which are most commonly used in climate research. This JavaTM based program applies the Structured Query Language (SQL) functions such as table creation on a database server, data or figures insertion into the table and data selection via Graphical User Interface. The selected data can be stored in NetCDF, HDF5, DataBase or TXT file formats and the figures can be available in PNG, JPG, JPNG, PDF or GIF file formats. The program was tested on Linux and Windows platforms with different JavaTM Development Kit. The MeteoRead is planned to be developed to visualizing the annual, seasonal, monthly, daily or hourly average value of the selected data and to use the functionality of the SQL database to calculate various mathematical and statistical correlations.

关键词： JavaTM Language MySQLTM Database Atmospheric Data Global Change

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《力学和物理中的无限维动力系统》引言

力学与实践 1990年第5期 5-9页

作者： ro■er Témam ,酆庆增

近年来,无限维动力系统理论有了突破性的进展,其代表性的著作是这里译出其序言的 R.Témam 的书(1988,Springer,共500页)以及 *** 的书《耗散系统的渐近行为》(1988,***,共200页).这两本书互为补充的专著给出了一个重要事实:有许多物理... 详细信息

近年来,无限维动力系统理论有了突破性的进展,其代表性的著作是这里译出其序言的 R.Témam 的书(1988,Springer,共500页)以及 *** 的书《耗散系统的渐近行为》(1988,***,共200页).这两本书互为补充的专著给出了一个重要事实:有许多物理、力学中感兴趣的,由偏微分方程描述的系统,它们的长期动态可以用有限个变量的常微分方程组所描述.用数学语言说,这些无限维动力系统的吸引子是有限维的.这个结果成立的前提是耗散性(dissipativeness),在数学证明中所采用的耗散定义正是物理、力学中常见的耗散性质的某种概括.这个结果可能为力学以及类似的物理学科的研究带来深刻的变化.例如:(1)在理论分析和数值计算上引起很大的变革,自相似性、重正化群、多重分形(multifractal)等被进一步用来解决一些用传统理论或方法难以解决的问题,如湍流、裂纹增长.(2)无限维系统(偏微)比有限维系统(常微)之所以更困难,因为其中不仅可能有时序上的浑沌,还可以出现空间的浑沌以及在空间分布上的奇异性.例如在充分发展的湍流中,这种奇异性的点可以集中在十分小的区域(数学语言是某种测度为零),却耗散掉绝大部分动能.裂纹增长所体现出的能量释放也是这种奇异性的标志.(3)由 *** 开创的耗散结构论和 *** 开创的协同论,为研究复杂物理系统提供了新思想.他们的理论是在一些较简单的情况中得到而加以推广,多少带有思辨哲学的意味.如今无限维动力系统的理论的进展,可望为诸如自组织,Pattern形成等概念提供更坚实的基础.目前,在 Téman 和 Hale 工作基础上进一步的数学研究在不断发展,特将 Téman书的序言译出以飨读者.

关键词：吸引子无限维无穷维有限维惯性流形中心流形耗散性动力系统物理周期状态方程吸收集力学

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太原市灰霾期间黑碳气溶胶形貌与成分分析

地球化学 2021年第1期50卷 75-87页

作者：冯小姣耿红彭妍康鑫武力 ro Chul-Un 山西大学环境科学研究所山西太原030006 山西大学环境与资源学院山西太原030006 韩国仁荷大学化学系仁川402-751

为掌握太原市冬季灰霾发生期间黑碳气溶胶形貌特征和化学成分变化特点,分别于2011-12-30 T 08:00至2012-01-01 T 04:00和2018-11-25 T 08:00至2018-11-27 T 04:00灰霾发生期间在山西大学环境与资源学院楼顶使用MAY七级冲击式颗粒采样器... 详细信息

为掌握太原市冬季灰霾发生期间黑碳气溶胶形貌特征和化学成分变化特点,分别于2011-12-30 T 08:00至2012-01-01 T 04:00和2018-11-25 T 08:00至2018-11-27 T 04:00灰霾发生期间在山西大学环境与资源学院楼顶使用MAY七级冲击式颗粒采样器每隔4 h采集空气动力学直径分别为0.25~0.5μm、0.5~1.0μm以及1~2μm的大气单颗粒分析样品,运用带超薄窗口能谱仪的扫描电镜(JEOL JSM-6390)测定了样品中4330个颗粒的二次电子像及X射线能谱,通过基于蒙特卡罗模拟程序的定量电子探针微区分析技术对每个颗粒的元素原子浓度进行了计算,并对颗粒进行了分类与计数。共检测到6类颗粒,分别是矿物尘、碳质颗粒、钠盐颗粒、二次颗粒、富铁颗粒和其他,其中黑碳气溶胶数量相对丰度在2011和2018年样品中平均为26.8%和34.2%。按照伸长率(E)、纵横比(R)、是否与其他物质结合等将其分为伸展型、支链型、嵌入或粘附型和团聚型4种,反映了黑碳颗粒不同的老化过程。2011年样品中团聚型和支链型数量较多,而2018年样品中伸展型和嵌入型多于团聚型和支链型,提示2011年黑碳气溶胶老化程度大于2018年,与灰霾严重程度相一致。本研究表明,与2011年相比,太原市2018年冬季灰霾污染特征和燃料结构可能发生了较大改变。

关键词：电子探针微区分析技术灰霾黑碳气溶胶形貌与成分太原市

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古巴猪萎缩性鼻炎的病因调查

中国畜禽传染病 1994年第1期16卷 15-18页

作者：张树成 Gorc.,ro 中国农科院哈尔滨兽医研究所

古巴猪群中有猪萎缩性鼻炎流行．临床型猪萎缩性鼻炎发病率平均为１０％，最高达２０％．在古巴首次分离到支气管败血波氏杆菌Ｉ相菌．此菌产生皮肤坏死毒素．对小鼠有致病力，鼻腔接种仔猪导致鼻甲骨萎缩．未分离到产毒素多杀巴氏杆菌... 详细信息

古巴猪群中有猪萎缩性鼻炎流行．临床型猪萎缩性鼻炎发病率平均为１０％，最高达２０％．在古巴首次分离到支气管败血波氏杆菌Ｉ相菌．此菌产生皮肤坏死毒素．对小鼠有致病力，鼻腔接种仔猪导致鼻甲骨萎缩．未分离到产毒素多杀巴氏杆菌．结果表明，支气管败血波氏杆菌对古巴猪群中萎缩性鼻炎的发生起重要作用，为枯萎缩性鼻炎的主要病因．

关键词：猪病萎缩性鼻炎病因古巴

Laser trimming for lithography-free fabrications of MoS_(2)devices

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Nano Research 2023年第4期16卷 5042-5046页

作者： Yong Xie OnurÇakıroğlu Wenshuai Hu Kexin He Sergio Puebla Thomas Pucher Qinghua Zhao Xiaohua Ma Carmen Munuera Andres Castellanos-Gomez Key Laboratory of Wide Band-Gap Semiconductor Technology School of Advanced Materials and NanotechnologyXidian UniversityXi’an 710071China Materials Science Factory Instituto de Ciencia de Materiales de MadridConsejo Superior de Investigaciones Científicas28049 MadridSpain

Single-layer MoS_(2)produced by mechanical exfoliation is usually connected to thicker and multilayer *** show a facile laser trimming method to insulate single-layer MoS_(2)regions from thicker *** demonstrate,through electrical characterization,that the laser trimming method can be used to pattern single-layer MoS_(2)channels with regular geometry and electrically disconnected from the thicker *** photocurrent microscope further confirms that in the as-deposited flake(connected to a multilayer area)most of the photocurrent is being generated in the thicker flake *** laser trimming,scanning photocurrent microscopy shows how only the single-layer MoS_(2)region contributes to the photocurrent *** presented method is a direct-write and lithography-free(no need of resist or wet chemicals)alternative to reactive ion etching process to pattern the flakes that can be easily adopted by many research groups fabricating devices with MoS_(2) and similar twodimensional materials.

关键词： 2D materials transition metal dichalcogenides laser trimming differential reflectance